Progesterone is a topic covered in the Davis's Lab & Diagnostic Tests.

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Common Use:
To assess ovarian function, assist in fertility work-ups, and monitor placental function during pregnancy related to disorders such as tumor, cysts, and threatened abortion.

Serum collected in a gold-, red-, or red/gray-top tube.

Normal Findings:
(Method: Immunochemiluminometric assay [ICMA])

Hormonal StateConventional UnitsSI Units (Conventional Units × 3.18)
PrepubertalLess than 1 ng/mLLess than 3 nmol/L
Adult maleLess than 1 ng/mLLess than 3 nmol/L
Adult female
 Follicular phaseLess than 1 ng/mLLess than 3 nmol/L
 Luteal phase2–25 ng/mL6.4–79.5 nmol/L
 Pregnancy, first trimester10–44 ng/mL31.8–140 nmol/L
 Pregnancy, second trimester19.5–82.5 ng/mL62–262.4 nmol/L
 Pregnancy, third trimester65–229 ng/mL206.7–728.2 nmol/L
 Postmenopausal periodLess than 1 ng/mLLess than 3 nmol/L

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